Contents

• NAME
• SYNOPSIS
  • F95 INTERFACE
  • C INTERFACE
• ARGUMENTS

NAME

     sint - compute the discrete Fourier sine transform of an odd
     sequence.   The SINT transforms are unnormalized inverses of
     themselves, so a call of SINT followed by  another  call  of
     SINT will multiply the input sequence by 2 * (N+1).

SYNOPSIS

     SUBROUTINE SINT(N, X, WSAVE)

     INTEGER N
     REAL X(*), WSAVE(*)

     SUBROUTINE SINT_64(N, X, WSAVE)

     INTEGER*8 N
     REAL X(*), WSAVE(*)

  F95 INTERFACE
     SUBROUTINE SINT(N, X, WSAVE)

     INTEGER :: N
     REAL, DIMENSION(:) :: X, WSAVE

     SUBROUTINE SINT_64(N, X, WSAVE)

     INTEGER(8) :: N
     REAL, DIMENSION(:) :: X, WSAVE

  C INTERFACE
     #include <sunperf.h>

     void sint(int n, float *x, float *wsave);

     void sint_64(long n, float *x, float *wsave);

ARGUMENTS

     N (input) Length of the sequence to be  transformed.   These
               subroutines  are most efficient when N+1 is a pro-
               duct of small primes.  N >= 0.

     X (input/output)
               On entry, an array  of  length  N  containing  the
               sequence  to  be  transformed.   On exit, the sine
               transform of the input.
     WSAVE (input/output)
               On entry, an array  with  dimension  of  at  least
               int(2.5 * N + 15) initialized by SINTI.